DDBNEXT-635: 
Responsive design for error message in the forms and css code restyling
DDBNEXT-652: Improve Print View for favorites list.
DDBNEXT-652: added dots to the date-stamp in the print view
Merge remote-tracking branch 'origin/DDBNEXT-635_restyling' into develop
Merge branch 'develop' of https://github.com/Deutsche-Digitale-Bibliothek/ddb-next.git into develop